I always say this as I walk around the theme parks featuring theUniversal Monsters (1925), Popeye (1929), Betty Boop (1930), King Kong (1933), Dr Seuss (1937), Dudley Do-Right (1959), Spider-Man and the Hulk (1962), Jason Bourne (1980), E.T. (1982), Transformers (1984), The Simpsons (1987), Jurassic Park (1990), Harry Potter (1997), and The Mummy (1999). IP popularity sure is fleeting, I think.